Design of wide-band planar yagi antenna

Abstract

Yagi antenna is an important antenna that has been receiving extensive

attention with many researches in the past few decades. Yagi antenna is able to

achieve a wide bandwidth on a thin substrate. Because of its advantages it has also

been used in numerous commercial applications such as satellites, missiles, etc. A

microstrip-to-slotline transition in Yagi antenna with compact feeding network is

proposed here.

The proposed antenna operates in a frequency range of 6 GHz to 18 GHz.

ANSYS High Frequency Structure Simulator (HFSS) is used for the simulation of

the proposed antenna and to obtain the desired results.

The proposed antenna is constructed using the bow-tie and the microstrip-to

slotline transitions. The designed model is simulated by HFSS software to obtain the

reflection coefficient IS 11 1, radiation pattern, and gain results of the antenna. This is

done by changing the dimensions of different parts of the antenna. The antenna is

finally optimized with extensive simulations conducted through HFSS by varying the

structural dimensions. Simulation results of the proposed antenna exhibit good

radiation performance based on the configuration of the final model.